- Building Future Cities Out of Timber Could Save 100 Billion Tons of CO2 Emissions:Replacing reinforced concrete with timber might sound unwise, but innovations in engineered wood mean it’s now feasible to construct multi-story buildings without traditional materials https://singularityhub.com/2022/09/05/building-future-cities-out-of-timber-could-save-100-billion-tons-of-co2-emissions/ 11 comments environment